CN103775234A - Water jacket structure of cylinder head - Google Patents
Water jacket structure of cylinder head Download PDFInfo
- Publication number
- CN103775234A CN103775234A CN201310470700.2A CN201310470700A CN103775234A CN 103775234 A CN103775234 A CN 103775234A CN 201310470700 A CN201310470700 A CN 201310470700A CN 103775234 A CN103775234 A CN 103775234A
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- water jacket
- exit opening
- opening portion
- cooling liquid
- cylinder
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 275
- 238000002485 combustion reaction Methods 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 230000008602 contraction Effects 0.000 claims abstract description 17
- 239000000110 cooling liquid Substances 0.000 claims description 130
- 238000010304 firing Methods 0.000 claims description 55
- 239000002912 waste gas Substances 0.000 claims description 43
- 238000007599 discharging Methods 0.000 claims description 21
- 239000002826 coolant Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000016285 Movement disease Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/243—Cylinder heads and inlet or exhaust manifolds integrally cast together
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/024—Cooling cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/028—Cooling cylinders and cylinder heads in series
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A water jacket structure of a cylinder head, which can inhibit a flow speed of a coolant liquid which flows through the inside of each water jacket from decreasing. The water jacket of the cylinder head has multiple combustion chamber tops (21), multiple exhaust openings (23), an exhaust gas gathering part (24) which gathers the exhaust gas from the multiple exhaust openings (24), a combustion water jacket on the top of a cooling combustion chamber (60), an upper-side exhaust water jacket (80) configured on an upper side with respect to the exhaust gas gathering part (24), a lower-side exhaust water jacket (90) configured on a lower side with respect to the exhaust gas gathering part (24), and a water outlet (100) which supplies the coolant liquid discharged from outlet opening parts (63, 83, 93) serving as openings of the coolant liquid to other components. The water outlet (100) has a first space part (111) corresponding to the outlet opening parts (83, 93), a second space part (112) which is corresponding to the outlet opening part (63), and a contraction part (113) which is correspondingly dispoed between the outlet opening parts (83, 93) and the outlet opening part (63).
Description
Technical field
The present invention relates to the jacket structure for water of cylinder head, especially, relate to and form the jacket structure for water that the waste gas that multiple relief openings are collected collects the cylinder head of portion.
Background technique
As cylinder head, known have form the cylinder head that the waste gas that the multiple relief openings that extend from multiple firing chambers are collected collects portion.In such cylinder head, for the abundant cooling waste gas that easily becomes high temperature collects portion, use water jacket except the firing chamber of cooling combustion chamber, be also provided with the exhaust water jacket that chill vent and waste gas collect portion.
In addition, a side surface in the bank of cylinder direction of cylinder head be formed with as flow through exhaust water jacket inside cooling liquid outlet opening portion and as the opening portion of outlet that flows through the firing chamber cooling liquid of water jacket inside, and, the water outlet that the cooling liquid of discharging from opening portion is offered to radiator or heater etc. is installed.Multiple opening portions are formed as separating predetermined interval on the width direction of a side surface, in the inside of water outlet, are formed with the single space portion (for example,, with reference to patent documentation 1) that the cooling liquid of discharging from multiple opening portions is converged.
Prior art document
Patent documentation
Patent documentation 1: No. 4337851 communique of Japan Patent
Summary of the invention
But, it is long-pending that the space portion that patent documentation 1 is recorded is formed with roughly certain longitudinal section along the width direction of a side surface, therefore, easily in space portion, collide the movement disorder of the cooling liquid in space portion by the cooling liquid of water jacket inflow with from firing chamber by the cooling liquid that water jacket flows into from exhaust.Therefore, exist cooling liquid to be easily trapped in space portion, and then the problem that the flow velocity of the cooling liquid that flows through each water jacket inside is declined.
The present invention completes in view of such problem, and its problem is, a kind of jacket structure for water of cylinder head is provided, and its flow velocity that can suppress the cooling liquid that flows through each water jacket inside declines.
The jacket structure for water of cylinder head of the present invention is characterised in that, the jacket structure for water of described cylinder head has: the multiple top of combustion chamber that are formed on the bottom surface of cylinder head, multiple relief openings, they are communicated with respectively with each top of combustion chamber in described multiple top of combustion chamber, waste gas collects portion, and its inside in described cylinder head is collected described multiple relief opening, firing chamber water jacket, its cooling described top of combustion chamber, upside exhaust water jacket, it is configured in the upside in cylinder-bore axis direction with respect to the described waste gas portion of collecting, and cooling described waste gas collects portion, downside exhaust water jacket, it is configured in the downside in cylinder-bore axis direction with respect to the described waste gas portion of collecting, and cooling described waste gas collects portion, the 1st exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described upside exhaust by the cooling liquid of water jacket inside, the 2nd exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described downside exhaust by the cooling liquid of water jacket inside, the 3rd exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described firing chamber by the cooling liquid of water jacket inside, and water outlet, it is installed in the side surface in the bank of cylinder direction of described cylinder head, to offer other parts from the described cooling liquid that described the 1st exit opening portion～described the 3rd exit opening portion discharges, described the 1st exit opening portion and described the 2nd exit opening portion are formed on the width direction of the side surface in described bank of cylinder direction and separate predetermined interval with described the 3rd exit opening portion, in the inside of described water outlet, be formed with and single space portion that described the 1st exit opening portion～described the 3rd exit opening portion is communicated with, described space portion has: the 1st space portion, it is arranged on the position corresponding with described the 1st exit opening portion and described the 2nd exit opening portion, mainly provide described cooling liquid to radiator, the 2nd space portion, it is arranged on the position corresponding with described the 3rd exit opening portion, mainly provides described cooling liquid to heater, and contraction flow region, it is arranged on position corresponding between described the 1st exit opening portion, described the 2nd exit opening portion and described the 3rd exit opening portion, and described in the Area Ratio of longitudinal section the 1st space portion and described the 2nd space portion little.
In addition, " in cylinder-bore axis direction upper and lower " refers to: with respect to the cylinder vertical plane of the plane as vertical with cylinder-bore axis, take the side that becomes top as upside, take the side that becomes below as downside.
According to the present invention, the space portion forming in the inside of water outlet has: the 1st space portion, and it is arranged on the position corresponding with the 1st exit opening portion and the 2nd exit opening portion, mainly provides cooling liquid to radiator; The 2nd space portion, it is arranged on the position corresponding with the 3rd exit opening portion, mainly provides cooling liquid to heater; Contraction flow region, its Area Ratio the 1st space portion and the 2nd space portion that is arranged on position corresponding between the 1st exit opening portion, the 2nd exit opening portion and the 3rd exit opening portion and longitudinal section is little, thereby can be easily take contraction flow region as boundary, produce from upper and lower exhaust water jacket through the 1st space portion towards radiator flow and from firing chamber with water jacket through the 2nd space portion flowing towards heater.Thus, the cooling liquid flowing into water jacket from upper and lower exhaust is difficult to collision with the cooling liquid flowing into water jacket from firing chamber in space portion, and the mobile of the cooling liquid in space portion becomes stable.Therefore, cooling liquid is difficult to be detained in space portion, and then can suppress the flow velocity decline of the cooling liquid that flows through each water jacket inside.
In addition, if adopt the structure of cutting off between the 1st space portion and the 2nd space portion, can not will flow into water jacket the cooling liquid importing radiator of the 2nd space portion from firing chamber, but according to the present invention, owing to being provided with contraction flow region, thereby between the 1st space portion and the 2nd space portion, can not bring large impact to the mobile of cooling liquid each other, thereby allow cooling liquid to flow into the 1st space portion from the 2nd space portion.Thus, the cooling liquid flowing into water jacket from upper and lower exhaust with can balancedly converge from firing chamber by the cooling liquid that water jacket flows into, thereby the amount of providing of the cooling liquid to radiator can be fully provided.
That is, according to the present invention, can either suppress the collision each other of the cooling liquid that flows into from each water jacket, can make again the cooling liquid flowing into from each water jacket suitably converge.
In addition be preferably configured to: the total flow of the flow F2 of the described cooling liquid of discharging by the flow F1 of the described cooling liquid of discharging from described the 1st exit opening portion with from described the 2nd exit opening portion is set to be greater than the relation that becomes F1+F2 > F3 from the flow F3 of the described cooling liquid of described the 3rd exit opening portion discharge.
According to such structure, because the total flow set of flow F2 of the cooling liquid of discharging by the flow F1 of the cooling liquid of discharging from the 1st exit opening portion with from the 2nd exit opening portion is that the flow F3 that is greater than the cooling liquid of discharging from the 3rd exit opening portion becomes the relation of F1+F2 > F3, thereby can fully guarantee the amount of providing of the cooling liquid to radiator.
According to the present invention, a kind of jacket structure for water of cylinder head can be provided, the flow velocity that this jacket structure for water can suppress the cooling liquid that flows through each water jacket inside declines.
Accompanying drawing explanation
Fig. 1 is the sectional view with the internal-combustion engine of the jacket structure for water of the cylinder head of present embodiment.
Fig. 2 is the stereogram of cylinder head and water outlet.
Fig. 3 is that the waste gas of inside of perspective cylinder head collects the stereogram that portion and cylinder cap side water jacket are drawn.
Fig. 4 decomposes cylinder cap side water jacket and waste gas collects the stereogram shown in portion along the vertical direction.
Fig. 5 is the ground plan of water jacket for air inlet, firing chamber water jacket and upside exhaust water jacket.
Fig. 6 is the ground plan of downside exhaust water jacket.
Fig. 7 is the front elevation while collecting portion from forward observation cylinder cap side water jacket and waste gas.
Fig. 8 is the stereogram of water outlet.
Fig. 9 illustrates the front elevation of observing the state of water outlet from outside.
Figure 10 illustrates the back elevation of observing the state of water outlet from rear side.
Figure 11 is for illustrating that cooling liquid flows into the perspective exploded view of air inlet water jacket from cylinder body side water jacket.
Figure 12 is for illustrating that cooling liquid flows into the perspective exploded view of downside exhaust water jacket from cylinder body side water jacket.
Figure 13 is the ground plan that cylinder head side water jacket and cylinder body side water jacket are overlapped and drawn with liner.
Figure 14 is for the mobile ground plan that water jacket for air inlet is described, for firing chamber, the cooling liquid of water jacket and water outlet is used in water jacket, upside exhaust.
Figure 15 is the mobile ground plan of the cooling liquid for downside exhaust water jacket and water outlet are described.
Label declaration
1 cylinder body, 1a cylinder, 2 cylinder head, 21 top of combustion chamber, 22 suction ports, 23 relief openings, 24 waste gas collect portion, 3 liners, 10 cylinder body side water jackets, 40 cylinder cap side water jackets, 50 air inlet water jackets, 60 firing chamber water jackets, 70 exhaust water jackets, 80 upside exhaust water jackets, 90 downside exhaust water jackets, 83 exit opening portions (the 1st exit opening portion), 93 exit opening portions (the 2nd exit opening portion), 63 exit opening portions (the 3rd exit opening portion), 100 water outlets, 110 outlets (space portion), 111 the 1st space portions, 112 the 2nd space portions, 113 contraction flow regions, E internal-combustion engine, Lc cylinder-bore axis.
Embodiment
With reference to Fig. 1～Figure 15, embodiments of the present invention are elaborated.In explanation, for the identical numbering of identical element annotation, and the repetitive description thereof will be omitted.In addition, as shown in the FIG., in the time of direction, be arranged at according to internal-combustion engine E under all around going up under the state of vehicle and illustrate.
Fig. 1 is the sectional view with the internal-combustion engine of the jacket structure for water of the cylinder head of present embodiment.
As shown in Figure 1, apply internal-combustion engine E of the present invention and there is body of the internal-combustion engine, cylinder head 2 that this body of the internal-combustion engine engages by cylinder block 1, with the upper side end of cylinder block 1, be arranged on the liner 3 between cylinder block 1 and cylinder head 2, the cylinder head cover (omitting diagram) engaging with the upper side end of cylinder head 2 forms, wherein, cylinder block 1 is provided with integratedly 4 cylinder 1a(that arrange in upright arrangemently and in Fig. 1, only illustrates 1).
Internal-combustion engine E has 4 cylinder 1a, multi-cylinder internal-combustion engine with the crankshaft 6 that can reciprocating mode be entrenched in piston 4 in each cylinder 1a, connect via connecting rod 5 and each piston 4, and is equipped on as carrying in the vehicle of object in the landscape configuration mode that the rotation centerline of crankshaft 6 points to left and right directions.In addition, internal-combustion engine E is configured to air inlet side to be configured to towards vehicle front towards rear view of vehicle and by exhaust side.
In each cylinder 1a, be in cylinder-bore axis direction in the direction parallel with the cylinder-bore axis Lc of this cylinder 1a, between piston 4 and cylinder head 2, form firing chamber 7 by cylinder 1a, piston 4 and cylinder head 2.
In addition, in the present embodiment, it is consistent with vertical axis (being above-below direction) that internal-combustion engine E is set to cylinder-bore axis Lc, but the invention is not restricted to this, for example also can internal-combustion engine E be set to cylinder-bore axis Lc and tilts with respect to vertical axis.
Fig. 2 is the stereogram of cylinder head and water outlet.Fig. 3 is that the waste gas of inside of perspective cylinder head collects the stereogram that portion and cylinder cap side water jacket are drawn.In addition,, in Fig. 3, draw the profile of cylinder head 2 with imaginary line (double dot dash line).
Top of combustion chamber 21 is arranged on the recess of the conical shaped shape of the bottom surface 2a of cylinder head 2.Suction port 22 is communicated with the rear surface 2b of each top of combustion chamber 21 and cylinder head 2.Relief opening 23 collects portion 24 by each top of combustion chamber 21 and waste gas and is communicated with.For 1 top of combustion chamber 21,2 suction ports 22 and relief opening 23 are set respectively.In addition,, on suction port 22 and relief opening 23, be provided with not shown suction valve and outlet valve.
As shown in Figure 2, waste gas collects portion 24 and has 1 opening portion 24a, the substantial middle portion opening of this opening portion 24a on the left and right directions of the front surface 2c of cylinder head 2.Waste gas collects portion 24 and is arranged on the inside of cylinder head 2 and is arranged on the position (with reference to Fig. 1) of forwards giving prominence to than cylinder block 1.Valve Transmission Room 25 is formed in the space of the concavity of the upper surface 2d of cylinder head 2.Valve Transmission Room 25 is received a part for the tappet gears such as not shown camshaft, rocking arm and valve.In addition,, at the left surface 2e of cylinder head 2, be formed with the exit opening portion 63,83,93 of the outlet of the cooling liquid as cylinder cap side water jacket 40 described later.At the left surface 2e of cylinder head 2, the water outlet 100 of the cooling liquid of discharging from exit opening portion 63,83,93 being distributed to heater and radiator is installed.Below, will be elaborated to exit opening portion 63,83,93 and water outlet 100.
In addition, at the front surface 2c of cylinder head 2, have two bearing hole 2f, these two bearing hole 2f are that the connecting part that is arranged on the core in cavity when being bound up on cast form and is supported on the core print seat of mould rack forms, and this bearing hole 2f is by sealings such as standby caps.
As Fig. 1 and as shown in Figure 3, cylinder cap side water jacket 40 is the spaces that become the stream of cooling liquid, has for the air inlet water jacket 50 of cooling suction port 22, for the firing chamber water jacket 60 at top, cooling combustion chamber 21 and collect the water jacket 70 for exhaust of portion 24 for chill vent 23 and waste gas.
As shown in Figure 1, air inlet is arranged on the below of suction port 22 with water jacket 50.Firing chamber with water jacket 60 be arranged on top of combustion chamber 21 directly over and be arranged between suction port 22 and relief opening 23.Exhaust has and is configured in relief opening 23 and waste gas and collects the upside exhaust water jacket 80 of portion's 24 upsides and be configured in relief opening 23 and waste gas collects the water jacket 90 for downside exhaust of portion's 24 downsides with water jacket 70.
Air inlet is communicated with cylinder body side water jacket 10 with water jacket 50, and is communicated with (with reference to the dotted line of Fig. 1) with firing chamber with water jacket 60.Firing chamber is communicated with cylinder body side water jacket 10 with water jacket 60, and is communicated with water jacket 80 with upside exhaust.Downside exhaust is communicated with cylinder body side water jacket 10 with water jacket 90.And downside exhaust is not communicated with air inlet water jacket 50, firing chamber water jacket 60 and upside exhaust water jacket 80 with water jacket 90., upside exhaust forms separate stream with water jacket 80 and downside exhaust water jacket 90 in the inside of cylinder head 2.
Next, with reference to Fig. 4～Fig. 7, to waste gas collect portion 24 and cylinder cap side water jacket 40(, air inlet water jacket 50, firing chamber water jacket 60, upside exhaust water jacket 80 and downside exhaust water jacket 90) detailed construction describe.
Fig. 4 decomposes cylinder cap side water jacket and waste gas collects the stereogram shown in portion along the vertical direction.Fig. 5 is the ground plan of water jacket for air inlet, firing chamber water jacket and upside exhaust water jacket.Fig. 6 is the ground plan of downside exhaust water jacket.Fig. 7 is the front elevation while collecting portion from forward observation cylinder cap side water jacket and waste gas.
Herein, in Fig. 4～Fig. 7, for convenience of explanation, be depicted as and there is entity (, the core corresponding with them) collect portion 24 and cylinder cap side water jacket 40 as the waste gas in space.
As shown in Figure 4, waste gas collects portion 24 to be had: the 1st collects the 24b of portion, and 2 relief openings 23 that are communicated with each firing chamber 7 are accumulated 1 by it; And the 2nd collect the 24c of portion, it collects the 24b of portion by 4 the 1st and is pooled near a position before opening portion 24a.The 2nd collects the substantial middle portion on the left and right directions that the 24c of portion and opening portion 24a be arranged on cylinder head 2.Collect in the 24b of portion at 4 the 1st, the 24b of portion is collected in the 1st of right side and left side, and to collect the 24b of portion than between the two two the 1st long.The 1st side of collecting the front side of the 24b of portion in this right side and left side has formed protuberance 91(as the protuberance 81 by upside exhaust water jacket 80 described later and downside exhaust water jacket 90 with reference to Fig. 1, Fig. 4～Fig. 6) waste gas that carries out cooling cooling object collects the downstream side sidepiece 24d of portion 24.In plan view, downstream side sidepiece 24d, from the relief opening 23 at two ends, left and right, tilts in the offside mode in front side of the opening portion 24a the closer to central.
As shown in Fig. 4, Fig. 5 (being mainly Fig. 5), air inlet is with reference to Fig. 1 to suction port 22(with water jacket 50) carry out cooling position, and with along left and right directions across the mode of the downside at each suction port 22 sinuous extend.Air inlet with water jacket 50 below each suction port 22, there are 8 bottom surface 2a(that are opened on cylinder head 2 with reference to Fig. 2) air inlet side inflow portion 51.In addition, air inlet in adjacent cylinder 1a (following, be sometimes called " between cylinder axis ") and the position corresponding with the outside of the cylinder 1a of left and right each other, has the interconnecting part 52 being communicated with firing chamber water jacket 60 with water jacket 50.Below the interconnecting part 52 between 3 cylinder axis, be respectively arranged with the between centers inflow portion 53 of the bottom surface 2a that is opened on cylinder head 2.
Firing chamber is with reference to Fig. 1 to top of combustion chamber 21(with water jacket 60) carry out cooling position, and to extend across the mode above each top of combustion chamber 21 along left and right directions.Firing chamber is formed as on fore-and-aft direction wider than air inlet water jacket 50 with water jacket 60, and is enclosed in not shown spark plug around.Firing chamber has two combustion chamber side inflow 61(of portion of bottom surface 2a of cylinder head of being opened on 2 with reference to Fig. 7 in the end on right side with water jacket 60).In addition, firing chamber with water jacket 60 with relief opening 23(with reference to Fig. 1) corresponding position each other, there is the interconnecting part 62 being communicated with upside exhaust water jacket 80.In addition, firing chamber with water jacket 60 in the end in left side, there is the left surface 2e of cylinder head of being opened on 2 and the 63(of exit opening portion of outlet that becomes cooling liquid with reference to Fig. 2).Exit opening portion 63 is formed as on fore-and-aft direction wider than firing chamber water jacket 60, and extends to front side.
As shown in Fig. 4, Fig. 5, Fig. 7 (being mainly Fig. 5), upside exhaust is set to cover with water jacket 80 upside that each relief opening 23 and waste gas collect portion 24.Upside exhaust is formed as with water jacket 80: compare with firing chamber water jacket 60 with water jacket 50 with air inlet, the width dimensions on fore-and-aft direction is larger, and thickness size thinner (with reference to Fig. 1) on above-below direction.Upside exhaust has from the downward outstanding protuberance 81(in end of front side with reference to Fig. 1 with water jacket 80).The downstream side sidepiece 24d that protuberance 81 is configured to collect with waste gas portion 24 is relative.In addition, with collecting with waste gas the part 82 that the opening portion 24a of portion 24 is corresponding in the end of the front side of water jacket 80, protuberance 81 is not set in upside exhaust.Upside exhaust with water jacket 80 in the end in left side, there is the left surface 2e of cylinder head of being opened on 2 and the 83(of exit opening portion of outlet that becomes cooling liquid with reference to Fig. 2).
In addition, if illustrated with reference to Fig. 5, use the position 55 between water jacket 60 in air inlet with water jacket 50 and firing chamber, be provided with suction port 22.In addition, with the position 65 corresponding with the central position of cylinder 1a in water jacket 60, be provided with spark plug (omitting diagram) in firing chamber.In addition, with the position 67 between water jacket 60 and upside exhaust water jacket 80, be provided with outlet valve (omitting diagram) in firing chamber.
As shown in Fig. 4, Fig. 6, Fig. 7 (being mainly Fig. 6), downside exhaust is set to cover with water jacket 90 downside that each relief opening 23 and waste gas collect portion 24.Downside exhaust with water jacket 90 take thickness size as being formed as flat (with reference to Fig. 1) with the mode of upside exhaust water jacket 80 same degree.Downside exhaust has the protuberance 91(projecting upwards from the end of front side with reference to Fig. 1 with water jacket 90).The downstream side sidepiece 24d that protuberance 91 is configured to collect with waste gas portion 24 is relative.In addition, with collecting with waste gas the part 92 that the opening portion 24a of portion 24 is corresponding in the end of the front side of water jacket 90, protuberance 91 is not set in downside exhaust.Downside exhaust with water jacket 90 in the end in left side, there is the left surface 2e of cylinder head of being opened on 2 and the 93(of exit opening portion of outlet that becomes cooling liquid with reference to Fig. 2).Downside exhaust with water jacket 90 in the end as rear side and with position corresponding below each relief opening 23, there are 8 exhaust side inflow portions 94 that are opened on the bottom surface 2a of cylinder head 2.Like this, owing to being provided with exhaust side inflow portion 94 under relief opening 23, thereby chill vent 23 efficiently.In addition,, between two exhaust side inflow portions 94 apart from exit opening portion 93 side (being upstream side) farthest, be provided with the inflow portion 95 of appending.
In addition, to collect portion 24 and cylinder cap side water jacket 40 be by forming as the cavity of the 2nd core for water jacket 300 of the sand mo(u)ld of the shape shown in Fig. 4, exhaust core the 400 and the 1st core for water jacket 200 is arranged at cylinder head 2 by this order casting molds (omitting diagram) from below to waste gas.That is, if from below in order 3 cores of overlapping configuration can complete the setting of core, thereby suppressed setting operation complicated of core.
Next,, with reference to Fig. 2, Fig. 8～Figure 10, exit opening portion 63,83,93 and water outlet 100 are described.Fig. 8 is the stereogram of water outlet.Fig. 9 illustrates the front elevation of observing the state of water outlet from outside.Figure 10 illustrates the back elevation of observing the state of water outlet from rear side.In addition, the shade of Figure 10 illustrates and the attachment face of cylinder head 2.
As shown in Figure 2, exit opening portion 83 and exit opening portion 93 are formed as being arranged above and below.Exit opening portion 83 and exit opening portion 93 are formed as on the width direction (front) of left surface 2e and exit opening portion 63 separates predetermined interval.Exit opening portion 83 forms what is called the 1st exit opening portion in claim, and exit opening portion 93 forms what is called the 2nd exit opening portion in claim, and exit opening portion 63 forms what is called the 3rd exit opening portion in claim.
The total flow of the flow F2 of the flow F1 of the cooling liquid of discharging from exit opening portion 83 in the present embodiment, and the cooling liquid of discharging from exit opening portion 93 is set to be greater than the flow F3 of the cooling liquid of discharging from exit opening portion 63 and becomes the relation of F1+F2 > F3.The flow velocity S3 of the flow velocity S2 of the flow velocity S1 of the cooling liquid of discharging from exit opening portion 93 in addition, and the cooling liquid of discharging from exit opening portion 83 and the cooling liquid of discharging from exit opening portion 63 is set to the relation of S1 > S2 > S3.The flow velocity that, flows through the cooling liquid of upper and lower exhaust water jacket 80,90 inside is set to be greater than and flows through the flow velocity of firing chamber by the cooling liquid of water jacket 60 inside.In addition, by upside exhaust is made as to be less than respectively the longitudinal section of exhaust water jacket 70 long-pending with the longitudinal section of water jacket 80 and downside exhaust water jacket 90 is long-pending, the opening area of exit opening portion 83 and exit opening portion 93 is made as to the opening area that is less than respectively exit opening portion 63, makes upper and lower exhaust water jacket 80,90 and firing chamber water jacket 60 produce current difference.
As shown in figure 10, be to extend the single space that arranges, the cooling liquid of discharging from exit opening portion 63,83,93 is offered to radiator and heater etc. along fore-and-aft direction (width direction of left surface 2e) as the outlet 110 of space portion.Outlet 110 has the 1st space portion the 111, the 2nd space portion 112 and contraction flow region 113.
The 1st space portion 111 is arranged on the position corresponding with exit opening portion 83,93, is mainly the space that the cooling liquid in upside exhaust water jacket 80 and downside exhaust water jacket 90 flows into.Be formed with the opening portion 111a being communicated with exit opening portion 83,93 at the back side of the 1st space portion 111.
The 2nd space portion 112 is arranged on the position corresponding with exit opening portion 63, is mainly the position that the cooling liquid in air inlet water jacket 50 and firing chamber water jacket 60 flows into.At the back side of the 2nd space portion 112, be formed with the opening portion 112a being communicated with exit opening portion 63.
Contraction flow region 113 is arranged on position corresponding between exit opening portion 83,93 and exit opening portion 63, is that longitudinal section is long-pending than the 1st space portion 111 and the 2nd little space of space portion 112.Contraction flow region 113 shrinks up and down with diminishing.Particularly, at the upper wall inner face 114 that forms outlet 110, be provided with from the 1st space portion 111 with the closer to the 2nd space portion 112 with regard to the offside plane of inclination 114a tilting in the mode of downside and from the 2nd space portion 112 with the closer to the 1st space portion 111 with regard to the offside plane of inclination 114b tilting in the mode of downside, and, in the lower wall inner face 115 of formation outlet 110, near the upper and lower corresponding position boundary portion of plane of inclination 114a, 114b, be provided with than the upwards protuberance 115a of side-prominent predetermined length of other position, form thus contraction flow region 113.Contraction flow region 113 has to be made to flow to flowing of radiator and flow to the easy function producing of flowing of heater from air inlet water jacket 50 and firing chamber water jacket 60 through the 2nd space portion 112 through the 1st space portion 111 from upside exhaust water jacket 80 and downside exhaust water jacket 90.In addition,, by contraction flow region 113 is set, between the 1st space portion 111 and the 2nd space portion 112, flowing of cooling liquid can not bring large impact each other, allows that cooling liquid flows into the 1st space portion 111 from the 2nd space portion 112.
As shown in Figure 8 and Figure 9, joint 120a～120g is formed as from the surface (outside) of water outlet 100 cylindric position outstanding and that be connected with not shown pipe arrangement or cooling-water temperature sensor laterally.Joint 120a～120e is communicated with the 1st space portion 111, and arranges on the front.Joint 120f is communicated with the 2nd space portion 112, and arranges by rear.Joint 120g is communicated with the 2nd space portion 112, and is arranged on the central part on fore-and-aft direction.The longitudinal section long-pending (outflow sectional area) of the joint 120a being communicated with radiator is formed as the longitudinal section of the joint 120b～120g that is greater than other and amasss.Thus, can make the flow of the cooling liquid that offers radiator more.As shown in figure 10, be set to the exit opening portion 83 of cylinder head 2,93(with reference to Fig. 2 towards the opening portion 120a1 of the 1st space portion 111 of joint 120a) relative.In addition, be set to substantially vertical with the exit opening portion 63 of cylinder head 2 (with reference to Fig. 2, Fig. 8) towards the opening portion (omitting diagram) of the 2nd space portion 112 of joint 120g.
As shown in Figure 8, by such structure, the cooling liquid of the 1st space portion 111 is provided for radiator by joint 120a and pipe arrangement.In addition, the cooling liquid of the 1st space portion 111 is provided for CVT heater by joint 120b and pipe arrangement, and is provided for extension box by joint 120c and pipe arrangement.In addition, the cooling liquid of the 1st space portion 111 is provided for thermostat by joint 120d and pipe arrangement.On the other hand, the cooling liquid of the 2nd space portion 112 is provided for throttle body by joint 120f and pipe arrangement, and is provided for heater by joint 120g and pipe arrangement.In addition, at joint 120e, the not shown cooling-water temperature sensor for detection of the temperature of cooling water is installed.
Figure 11 is for illustrating that cooling liquid flows into the exploded perspective view of air inlet water jacket from cylinder body side water jacket.Figure 12 is for illustrating that cooling liquid is from flowing into the exploded perspective view of downside exhaust water jacket from cylinder body side water jacket.Figure 13 is the ground plan of describing overlappingly cylinder cap side water jacket and cylinder body side water jacket on the ground plan of liner.
In addition,, in Figure 11, Figure 12, for convenience of explanation, describe the part beyond inflow portion in cylinder cap side water jacket 40 with imaginary line (double dot dash line).In addition,, in Figure 13, to liner 3 annex point shades, and draw the opening portion of cylinder body side water jacket 10 with imaginary line (thick dashed line).In addition,, in Figure 13, schematically draw water outlet 100.
As shown in Figure 11, Figure 12, Figure 13, cylinder body side water jacket 10 is formed as being integrally enclosed in 4 cylinder 1a around.Cylinder body side water jacket 10, in the front side of the cylinder 1a of the rightmost side, has the introduction part 11 of the cooling liquid wider than other position.In introduction part 11, be inserted with distance member 11a, the flow direction of restriction cooling liquid.In the present embodiment, cooling liquid pipe arrangement P is connected in the keep left position of side than the distance member 11a of introduction part 11.In addition, cylinder body side water jacket 10 has necking part 12 with the cylinder 1a position that (between cylinder axis) is corresponding each other.In addition,, between cylinder axis, be formed with the between centers seam 13 that makes the groove shape that the necking part 12 of front side and rear side communicates with each other.
As shown in Figure 11, Figure 12, Figure 13 (being mainly Figure 13), liner 3 is the metal plate-shaped members processed at the joining portion of blanket gas cylinder body 1 and cylinder head 2.Liner 3 has 4 the cylinder opening portions 31 corresponding with 4 cylinder 1a of cylinder block 1.In addition, liner 3 has: air inlet side through hole 32 and between centers through hole 33, and they are formed on the position corresponding with the air inlet air inlet side inflow portion 51 of water jacket 50 and between centers inflow portion 53; Combustion chamber side through hole 34, it is formed on the position corresponding with the combustion chamber side inflow portion 61 of firing chamber water jacket 60; And exhaust side through hole 35 and append through hole 36, they be formed on the exhaust side inflow portion 94 of downside exhaust water jacket 90 with append position corresponding to inflow portion 95.These air inlet side through holes 32, between centers through hole 33, combustion chamber side through hole 34, exhaust side through hole 35 and append through hole 36 and be all formed on the position corresponding with the opening portion of cylinder body side water jacket 10.Air inlet side through hole 32 and exhaust side through hole 35 are formed as: except part exception, bore is larger to be substantially positioned at the hole (away from the hole of exit opening portion 63,83,93) on right side.Especially,, compared with other through hole 32,33,35,36, combustion chamber side through hole 34 is formed as larger bore.Thus, easily form vertical stream described later.
Next,, with reference to Figure 11～Figure 15, the mobile of cooling liquid in cylinder body side water jacket 10 and cylinder cap side water jacket 40 described.
Figure 14 is for the mobile ground plan that water jacket for air inlet is described, for firing chamber, the cooling liquid of water jacket and water outlet is used in water jacket, upside exhaust.Figure 15 is the mobile ground plan of the cooling liquid for downside exhaust water jacket and water outlet are described.In addition,, in Figure 14 and Figure 15, schematically draw water outlet 100.
As shown in Figure 11, Figure 12, from cooling liquid pipe arrangement P flow into the cooling liquid (arrow Y1) of introduction part 11 along cylinder body side water jacket 10 towards left to the front side (arrow Y2) of flowing through cylinder 1a, (arrow Y3) turns around in left part, flow through the rear side (arrow Y4) of cylinder 1a along cylinder body side water jacket 10 towards right, arrive right part (arrow Y5).In addition, cooling liquid stitches 13 by between centers, the necking part 12 from the necking part 12 of front side towards rear side flow (arrow Y6).
As shown in figure 12, along cylinder body side water jacket 10 towards left to flowing through the exhaust side through hole 35 that a part in the cooling liquid (arrow Y2) of front side of cylinder 1a forms in by liner 3 and appending through hole 36, from exhaust side inflow portion 94 with the inside (arrow Y7) of appending inflow portion 95 and flow into downside exhaust water jacket 90., the mobile of the cooling liquid in present embodiment is so-called exhaust the flowing at antetype that cooling liquid first flowed into downside exhaust water jacket 90 before flowing into air inlet water jacket 50.Thus, chill vent 23 and waste gas collect portion 24 efficiently.
In addition, as shown in figure 11, flow through the part in the cooling liquid (arrow Y4) of the rear side of cylinder 1a towards right along cylinder body side water jacket 10, by the air inlet side through hole 32 forming in liner 3, flow into the inside (arrow Y8a) of air inlet water jacket 50 from air inlet side inflow portion 51.In addition, stitch 13 cooling liquid (arrow Y6) by between centers and converge at the necking part 12 of rear side, thus, by the between centers through hole 33 forming in liner 3, flow into the inside (arrow Y8b) of air inlet water jacket 50 between centers inflow portion 53.In addition, the cooling liquid (arrow Y5) that has arrived the right part of cylinder body side water jacket 10 is passed through the combustion chamber side through hole 34 forming in liner 3, the right part (arrow Y9) from combustion chamber side inflow portion 61 flowing in combustion chambers with water jacket 60.
As shown in figure 14, use the cooling liquid of the right part of water jacket 60 from combustion chamber side inflow portion 61 flowing in combustion chambers, flow to from right to left the 63(of the exit opening portion arrow Y10 of left part).This flow (arrow Y10), in firing chamber with in water jacket 60, forming is top of combustion chamber 21 along cylinder 1a() orientation Lb(with reference to Figure 11, Figure 12) flow (so-called vertical stream).In addition, flow into the cooling liquid of inside of air inlet water jacket 50 from air inlet side inflow portion 51 and between centers inflow portion 53 by interconnecting part 52 flowing in combustion chambers water jacket 60(arrow Y11), converge with above-mentioned vertical stream.The cooling liquid (arrow Y10) that flows through from right to left the inside of firing chamber water jacket 60 flows into the 2nd space portion 112 of water outlet 100 from exit opening portion 63.The cooling liquid that flows into the 2nd space portion 112 in Figure 14, only illustrates joint 120g via joint 120f～120g() and pipe arrangement, be provided for heater etc.
The part flowing through in the cooling liquid of firing chamber water jacket 60 flows into water jacket 80 for upside exhaust by interconnecting part 62.Flow (the arrow Y12) that flow into from each interconnecting part 62 converges in the forward end of upside exhaust water jacket 80, and forming is top of combustion chamber 21 along cylinder 1a() orientation Lb(with reference to Figure 11, Figure 12) (so-called vertical flow) (the arrow Y13) that flow.In addition, upside exhaust is with the right front portion 80a of water jacket 80 due to tilt the closer to the offside mode in front side of exit opening portion 83, thereby the cooling liquid flowing into towards front from the interconnecting part 62 on right side is easily directed into the right front portion 80a of upside exhaust water jacket 80 and flows to exit opening portion 83.The cooling liquid that flows through from right to left the inside of upside exhaust water jacket 80 flows into the 1st space portion 111 of water outlet 100 from exit opening portion 83.The cooling liquid that flows into the 1st space portion 111 in Figure 14, only illustrates joint 120a via joint 120a～120d() and pipe arrangement, be provided for radiator etc.
As shown in figure 15, flow into the cooling liquid (arrow Y14) of downside exhaust water jacket 90 from exhaust side inflow portion 94, forwards flow and converge with the forward end of water jacket 90 in downside exhaust, forming is top of combustion chamber 21 along cylinder 1a() orientation Lb(with reference to Fig. 1, Figure 12) (so-called vertical flow) (the arrow Y15) that flow.In addition, downside exhaust with the right front portion 90a of water jacket 90 due to tilt the closer to the offside mode in front side of exit opening portion 93, thereby from the exhaust side inflow portion 94 on right side with append the cooling liquid that inflow portion 95 flows to front and be easily directed into the right front portion 90a of downside exhaust water jacket 90 and flow to exit opening portion 93.Flow through from right to left the cooling liquid (arrow Y15) of the inside of downside exhaust water jacket 90, flow into the 1st space portion 111 of water outlet 100 from exit opening portion 93.The cooling liquid that flows into the 1st space portion 111 only illustrates joint 120a in Figure 15 via joint 120a～120d() and pipe arrangement, be provided for radiator etc.
As mentioned above, according to the jacket structure for water of the cylinder head of present embodiment, the outlet 110 forming due to the inside at water outlet 100 has the 1st space portion 111, the 2nd space portion 112 and contraction flow region 113, thereby can be easily take contraction flow region 113 as boundary, produce from upper and lower water jacket 80 for exhaust, 90 flow to flowing and using from air inlet of radiator through the 1st space portion 111, water jacket 50 for firing chamber, 60 flow to flowing of heater through the 2nd space portion 112, wherein, the 1st space portion 111 is arranged on and exit opening portion 83, the position of 93 correspondences, mainly provide cooling liquid to radiator, the 2nd space portion 112 is arranged on the position corresponding with exit opening portion 63, mainly provide cooling liquid to heater, contraction flow region 113 is arranged on and exit opening portion 83, 93 and exit opening portion 63 between corresponding position, and the Area Ratio of longitudinal section the 1st space portion 111 and the 2nd space portion 112 are little.Thus, exporting 110 interior very difficult collisions from upper and lower exhaust by the cooling liquid of water jacket 80,90 inflows and the cooling liquid of using from air inlet, firing chamber water jacket 50,60 flows into, the flowing of cooling liquid that makes to export in 110 stablized.Therefore, cooling liquid is in outlet 110 interior very difficult delays, and then the flow velocity that can suppress the cooling liquid that flows through each water jacket 50,60,80,90 inside declines.
Especially, due to the higher cooling liquid of the flow velocity of water jacket 80, the 90 inflows cooling liquid very difficult collision lower with the flow velocity of using from air inlet, firing chamber water jacket 50,60 flows into for the exhaust from upper and lower, the decline of flow velocity is less, thereby can provide cooling liquid to radiator reposefully.
In addition, in the time having adopted the structure of cutting off between the 1st space portion 111 and the 2nd space portion 112, can not import radiator from the cooling liquid that air inlet is used, firing chamber water jacket 50,60 flows into the 2nd space portions 112, but in the present embodiment, owing to being provided with contraction flow region 113, thereby between the 1st space portion 111 and the 2nd space portion 112, flowing of cooling liquid can not bring greater impact each other, thereby allow cooling liquid to flow into the 1st space portion 111 from the 2nd space portion 112.Thus, the cooling liquid flowing into water jacket 80,90 from upper and lower exhaust and the cooling liquid that flows into, firing chamber water jacket 50,60 from air inlet can equilibriums and are moderately converged, and the amount of providing of the cooling liquid to radiator can be fully provided.
That is, according to present embodiment, can either suppress the collision each other of the cooling liquid that flows into from each water jacket 50,60,80,90, can make again the cooling liquid flowing into from each water jacket 50,60,80,90 moderately converge.
In addition, the flow F3 that is set to larger than the cooling liquid of discharging from exit opening portion 63 due to the total flow of the flow F2 of the flow F1 of the cooling liquid of discharging from exit opening portion 83 and the cooling liquid of discharging from exit opening portion 93 becomes the relation of F1+F2 > F3, thereby the amount of providing of the cooling liquid to radiator can be fully provided.
Above, with reference to accompanying drawing, the jacket structure for water of the cylinder head to present embodiment has been described in detail, but self-evident, the invention is not restricted to these mode of executions, without departing from the spirit and scope of the invention, can suitably change.
For example, in the present embodiment, although be configured to, firing chamber water jacket 60 is communicated with upside exhaust water jacket 80, but the present invention is not limited to this, as long as make upside exhaust water jacket 80 and downside exhaust water jacket 90 become separate stream, also can be configured to firing chamber water jacket 60 is communicated with downside exhaust water jacket 90.In addition, because the structure that firing chamber water jacket 60 is communicated with upside exhaust water jacket 80 can increase the width dimensions on the above-below direction of interconnecting part 62, thereby can strengthen the rigidity of the 1st core for water jacket 200 shown in Fig. 4.
In addition, in the present embodiment, to upside exhaust, with water jacket 80 and downside exhaust water jacket 90, the two is provided with protuberance 81,91, but the invention is not restricted to this, also can only by any one party in water jacket 80 and downside exhaust water jacket 90, protuberance be set to upside exhaust.In such structure, also can make upside exhaust water jacket 80 separate with downside exhaust water jacket 90, the downstream side sidepiece 24d that waste gas is collected to portion 24 carries out cooling.
In addition, in the present embodiment, the position of the substantial middle on the left and right directions in cylinder head 2 is formed with the opening portion 24a that waste gas collects portion 24, but also can form the opening portion 24a that waste gas collects portion 24 in the position near left and right any one party.
In addition, the present invention is illustrated as an example of the internal-combustion engine E of 4 cylinder forms in upright arrangement example, but the invention is not restricted to this, also can be applied to the internal-combustion engine E of other cylinder number such as 2 cylinders, 3 cylinders, in addition, also can be applied to the internal-combustion engine E of V-type form etc.In addition, self-evident, the invention is not restricted to the internal-combustion engine E of automobile, also can be applied to other internal-combustion engine such as boats and ships, universal machine E.
Claims (2)
1. a jacket structure for water for cylinder head, is characterized in that, has:
Be formed on multiple top of combustion chamber of the bottom surface of cylinder head;
Multiple relief openings, they are communicated with respectively with each top of combustion chamber in described multiple top of combustion chamber;
Waste gas collects portion, and its inside in described cylinder head is collected described multiple relief opening;
Firing chamber water jacket, its cooling described top of combustion chamber;
Upside exhaust water jacket, it is configured in the upside in cylinder-bore axis direction with respect to the described waste gas portion of collecting, and cooling described waste gas collects portion;
Downside exhaust water jacket, it is configured in the downside in cylinder-bore axis direction with respect to the described waste gas portion of collecting, and cooling described waste gas collects portion;
The 1st exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described upside exhaust by the cooling liquid of water jacket inside;
The 2nd exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described downside exhaust by the cooling liquid of water jacket inside;
The 3rd exit opening portion, its side surface upper shed in the bank of cylinder direction of described cylinder head, becomes and flows through the outlet of described firing chamber by the cooling liquid of water jacket inside; And
Water outlet, it is installed in the side surface in the bank of cylinder direction of described cylinder head, will offer other parts from the described cooling liquid that described the 1st exit opening portion～described the 3rd exit opening portion discharges,
Described the 1st exit opening portion and described the 2nd exit opening portion are formed on the width direction of the side surface in described bank of cylinder direction and separate predetermined interval with described the 3rd exit opening portion,
In the inside of described water outlet, be formed with and the single space portion that described the 1st exit opening portion～described the 3rd exit opening portion is communicated with,
Described space portion has:
The 1st space portion, it is arranged on the position corresponding with described the 1st exit opening portion and described the 2nd exit opening portion, mainly provides described cooling liquid to radiator;
The 2nd space portion, it is arranged on the position corresponding with described the 3rd exit opening portion, mainly provides described cooling liquid to heater; And
Contraction flow region, it is arranged on position corresponding between described the 1st exit opening portion, described the 2nd exit opening portion and described the 3rd exit opening portion, and described in the Area Ratio of longitudinal section the 1st space portion and described the 2nd space portion little.
2. the jacket structure for water of cylinder head according to claim 1, is characterized in that,
The total flow of flow F2 of the flow F1 of the described cooling liquid of discharging from described the 1st exit opening portion and the described cooling liquid of discharging from described the 2nd exit opening portion is set to be greater than the flow F3 of the described cooling liquid of discharging from described the 3rd exit opening portion and becomes the relation of F1+F2 > F3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-232260 | 2012-10-19 | ||
| JP2012232260A JP5587380B2 (en) | 2012-10-19 | 2012-10-19 | Cylinder head water jacket structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775234A true CN103775234A (en) | 2014-05-07 |
| CN103775234B CN103775234B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310470700.2A Active CN103775234B (en) | 2012-10-19 | 2013-10-10 | The jacket structure for water of cylinder head |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5587380B2 (en) |
| CN (1) | CN103775234B (en) |
| DE (1) | DE102013221214A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574571A (en) * | 2014-07-28 | 2017-04-19 | 丰田自动车株式会社 | Rear frame for a thrust reverser structure with diversion grids |
| CN112555081A (en) * | 2020-12-23 | 2021-03-26 | 浙江钱江摩托股份有限公司 | Engine warming structure of engine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6952407B2 (en) * | 2017-08-15 | 2021-10-20 | 愛知機械工業株式会社 | Cylinder head and internal combustion engine equipped with it |
| JP6973093B2 (en) | 2018-01-10 | 2021-11-24 | トヨタ自動車株式会社 | Internal combustion engine |
| JP7354795B2 (en) | 2019-11-27 | 2023-10-03 | スズキ株式会社 | Cylinder head cooling water passage structure |
| KR20220012650A (en) * | 2020-07-23 | 2022-02-04 | 현대자동차주식회사 | Cooling system for cylinder head and cooling system for vehicle provided with the same |
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- 2013-10-10 CN CN201310470700.2A patent/CN103775234B/en active Active
- 2013-10-18 DE DE102013221214.3A patent/DE102013221214A1/en not_active Withdrawn
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| JP2000328941A (en) * | 1999-05-19 | 2000-11-28 | Iseki & Co Ltd | Water-cooled engine cooling system |
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| CN106574571B (en) * | 2014-07-28 | 2019-03-15 | 丰田自动车株式会社 | The cooling structure of internal combustion engine |
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| CN112555081A (en) * | 2020-12-23 | 2021-03-26 | 浙江钱江摩托股份有限公司 | Engine warming structure of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103775234B (en) | 2016-04-13 |
| JP2014084741A (en) | 2014-05-12 |
| DE102013221214A1 (en) | 2014-04-24 |
| JP5587380B2 (en) | 2014-09-10 |
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